CN211791603U - Gas monitoring system applied to urban rail transit underground operation interval - Google Patents
Gas monitoring system applied to urban rail transit underground operation interval Download PDFInfo
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- CN211791603U CN211791603U CN202020831849.4U CN202020831849U CN211791603U CN 211791603 U CN211791603 U CN 211791603U CN 202020831849 U CN202020831849 U CN 202020831849U CN 211791603 U CN211791603 U CN 211791603U
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Abstract
The utility model provides a gas monitoring system applied to urban rail transit underground operation interval, which comprises a monitoring device, a communication network, a communication manager, a monitoring center and a tunnel fan, wherein the monitoring device and the communication manager are respectively connected with the communication network, the communication manager is connected with the monitoring center, the output end of a gas sensor is connected with the input end of a monitoring substation, and the tunnel fan is connected with the monitoring center; each monitoring substation is connected with a plurality of gas sensors, so that the real-time monitoring of gas in the whole underground operation interval is realized, the configuration is flexible, and the monitoring system is economical and practical; the field bus with the linear structure is distributed, the reliability of the system is improved, the working personnel can observe the running condition and the parameter setting of each device in the underground operation interval in real time through the human-computer interface, the problems in the system can be found in time and corrected in time, the maintenance and the management of the system are facilitated, and the working efficiency of the working personnel is improved.
Description
Technical Field
The utility model belongs to the technical field of the gas monitoring, concretely relates to be applied to interval gas monitoring system of urban rail transit underground operation.
Background
The urban rail transit is an important means for solving urban traffic congestion, changes the travel mode of people by virtue of the advantages of environmental protection, comfort, rapidness and safety from starting development to current comprehensive construction, and becomes an inevitable choice for urban rail transit development. In recent years, gas with different concentration levels appears in urban underground regions, and potential safety hazards are caused to urban rail transit operation. Therefore, real-time monitoring of gas in underground operation regions is needed.
The traditional gas monitoring system has single function and is mainly applied to the coal mine industry, the system construction is mainly point-based, only a certain specific monomer data can be acquired, and the real-time monitoring of the gas of the rail transit on the line network level cannot be realized; the maintenance and management of the system are very difficult in the future, and the corresponding equipment system is not provided with a redundant device, so that the reliability is poor.
Therefore, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a be applied to interval gas monitoring system of urban rail transit underground operation to at least, solve the unable gas real-time supervision's of realizing rail transit at the gauze aspect problem that exists among the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a gas monitoring system applied to urban rail transit underground operation intervals, which comprises a monitoring device, a communication network, a communication manager, a monitoring center and a tunnel fan; the monitoring devices and the communication manager are respectively connected with the communication network, the monitoring devices are connected on the communication network in parallel, and the communication manager is connected with the monitoring center; the monitoring device comprises a monitoring substation and gas sensors, wherein the output end of each gas sensor is connected with the input end of the monitoring substation, a plurality of gas sensors are connected to the communication network through the monitoring substation, and intelligent instruments are arranged on the gas sensors and the monitoring substation; the tunnel fan is connected with the monitoring center.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the monitoring device further comprises a signal converter and an exchanger; the switch is connected in series to the communication network, the output end of the signal converter is connected with the input end of the switch, and the input end of the signal converter is connected with the output end of the monitoring substation.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the monitoring substation is provided with an alarm; the signal converter is a mining intrinsic safety type signal converter.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the gas sensor is a laser methane sensor; the distance between two adjacent gas sensors is 50 m.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the communication network is of a field bus structure, and the field bus structure is of a linear structure; the communication network is a communication cable.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the communication manager is a PLC, the communication manager comprises a power module, a CPU module and a communication module, and the communication manager is connected with the communication network through the communication module.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the monitoring center further comprises a human-computer interface.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as a preferred scheme, the tunnel fan is an explosion-proof axial flow fan.
According to the gas monitoring system applied to the urban rail transit underground operation interval, as an optimal scheme, the monitoring center is a comprehensive monitoring system or an environment and equipment monitoring system.
Compared with the closest prior art, the utility model provides a technical scheme has following excellent effect:
the utility model aims at providing a be applied to city track traffic underground operation interval's gas monitoring system, each control substation is connected with a plurality of gas sensors, and gas sensors connect in parallel on communication network, do not influence each other between each gas sensor, realize the real-time supervision to whole line underground operation interval gas, the configuration is nimble, economical and practical; the field bus with the linear structure is distributed, the reliability of the system is improved, the fault rate of the system is reduced, the signal converter enhances the connection with the monitoring substations, the system response is more timely and efficient, the working personnel can observe the operation condition and the parameter setting of each device in the underground operation interval in real time through a human-computer interface, the problems in the system can be found in time and corrected in time, the maintenance and the management of the system are facilitated, and the working efficiency of the working personnel is improved.
Drawings
Fig. 1 is a schematic structural view of a gas monitoring system according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a gas monitoring system applied to a comprehensive monitoring system in an embodiment of the present invention;
fig. 3 is a schematic structural view of a gas monitoring system applied to an environment and equipment monitoring system in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a monitoring device in an embodiment of the present invention.
In the figure: 1. a monitoring center; 11. an integrated monitoring system (ISCS); 12. environment and equipment monitoring system (BAS)2, communication manager; 3. a communication network; 4. a monitoring device; 401. a gas sensor; 402. monitoring substations; 403. a signal converter; 404. a switch; 5. a human-machine interface; 6. a tunnel fan.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely below, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art all belong to the protection scope of the present invention.
In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected" and "connected" used in the present invention should be understood in a broad sense, and may be, for example, either fixed or detachable; they may be directly connected or indirectly connected through intermediate members, and specific meanings of the above terms will be understood by those skilled in the art as appropriate.
The noun explains:
ISCS: an Integrated Supervisory Control System (Integrated Supervisory Control System) for urban rail transit is called an Integrated Supervisory Control System for short.
BAS: environment and equipment monitoring System (Building Automation System).
PLC: programmable Logic Controller (Programmable Logic Controller).
The invention will be described in detail below with reference to the accompanying drawings and embodiments, it being noted that the embodiments and features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 and 4, the utility model provides a be applied to gas monitoring system between urban rail underground operation section, gas monitoring system includes monitoring devices, communication network, communication manager, surveillance center and tunnel fan, monitoring devices and communication manager are connected with communication network respectively, communication manager is connected with surveillance center, wherein, monitoring devices includes control substation and gas sensor, gas sensor's output is connected with the input of control substation, gas sensor is used for monitoring the gas content between the underground operation section, control substation is used for gathering the data that gas sensor monitored in real time, a plurality of gas sensor all are connected to communication network through control substation; the tunnel fan is connected with the surveillance center, and the control center controls opening and close of tunnel fan, and the tunnel fan is used for discharging the interval gas of underground operation, the embodiment of the utility model provides a tunnel fan is preferred to be explosion-proof axial-flow fan for carry flammable and explosive gas, prevent to arouse the spark in the operation.
The embodiment of the utility model provides a control substation is provided with a plurality ofly, every substation has fixed system capacity, install the different positions in underground operation interval in order, be provided with the RS485 port on the control substation, be used for connecting gas sensor, realize data transmission between the two, the input of every control substation is connected with a plurality of gas sensor, realize the independent work between a plurality of gas sensor, each other does not influence between the gas sensor, can accurately monitor the gas concentration of different positions, the gas sensor is preferred GJG100J type high concentration laser methane sensor, GJG100J type high concentration laser methane sensor is the full-scale, high accuracy methane sensor, transmit and measure through optical signal, this sensor shows the methane concentration value in real time and converts the methane concentration value into standard electric signal transmission for the control substation automatically in succession, the spacing distance between two adjacent gas sensor is 50m, the gas sensor is ensured to realize real-time monitoring of gas in the whole-line underground operation interval, and the monitoring substation monitors the running state and the fault state of the gas sensor in the underground operation interval.
Furthermore, monitoring devices still includes signal converter and switch, the switch is established ties on communication network, signal converter's output is connected with the input of switch, signal converter and switch are connected gradually between control substation and the communication network, monitoring devices are the electric elements who has functions such as collection function, arithmetic logic operation function, memory function, communication to all have communication interface, monitoring devices passes through communication interface and connects in parallel on communication network, can gather the gas concentration of underground operation interval in real time.
Furthermore, the input end of the signal converter in the embodiment of the present invention is connected to the output end of the monitoring substation, and is used for converting the data information collected by the monitoring substation, converting the information collected by the monitoring substation into digital signals and transmitting the digital signals to the switch, the signal converter is preferably KZG18(a) mining intrinsic safety type signal converter, the circuit of the signal converter has a simple structure, reliable performance, and is convenient for maintenance and debugging, the device having the ethernet and RS485 communication interfaces provides a downhole transmission channel, the signal converter has an optional independent ring-forming capability, and provides a safer transmission channel for data transmission,
the monitoring substation is also internally provided with an alarm, specifically, the numerical value of the gas content in the underground operation interval monitored by the gas sensor and the numerical value of the gas content set in the monitoring substation are judged, the alarm gives an alarm to the overproof gas content monitored by the gas sensor, and meanwhile, the signal converter is additionally connected with the monitoring substation, so that the system can react more timely and efficiently. When the gas content alarm is applied, the set gas content can be 0.3%, namely the gas content exceeds 0.3%, the alarm gives an alarm, and in other embodiments, the gas content alarm can also be other values. The alarm can also be a voice alarm.
Further, all be provided with intelligent instrument, the type of intelligent instrument on gas sensor and the control substation the embodiment of the utility model provides an in not further inject, intelligent instrument is used for real-time display gas sensor and control substation collection, analysis gas concentration data.
The embodiment of the utility model provides an in communication network is communication cable, adopts the field bus structure to arrange, and field bus adopts linear structure, improves the reliability of system, and linear structure's field bus dispersion is arranged, and the reliability is high, and the field bus fault rate of fault rate than other structures is low, when the equipment of system is more, adopts many single bus forms.
Further, the communication manager is a PLC, the communication manager comprises a power module, a CPU module and a communication module, the power module provides power for the CPU module and the communication module, the CPU module controls and operates signal information received by the communication module, and the communication manager is connected with a communication network through the communication module. The communication manager can adopt a communication manager of an urban rail transit comprehensive monitoring system, and can also be independently configured for the system.
Furthermore, the monitoring center is connected with a control switch of the tunnel fan, when an alarm module in the monitoring substation gives an alarm, the monitoring center and the monitoring substation can pop up an alarm dialog box to remind workers of the alarm, and meanwhile, the control switch of the tunnel fan connected with the monitoring center can be started to reduce the gas content in the underground operation interval to be below a preset value, in the embodiment of the utility model, the preset gas concentration value of the monitoring substation is 0.3%, and when the gas monitor monitors that the gas content in the underground operation interval exceeds 0.3%, the control switch of the alarm module and the tunnel fan can be triggered to reduce the gas concentration in the underground operation interval; the monitoring center further comprises a human-computer interface, and workers can observe the running condition and parameter setting of each device in the underground operation interval in real time through the human-computer interface, can find problems in the system in time and carry out timely finishing, so that the system is convenient to maintain and manage, and the working efficiency of the workers is improved.
Example 1
In order to better understand the present invention, the following description is given with reference to the embodiments,
as shown in fig. 2, the monitoring center takes an urban rail transit integrated monitoring system (ISCS) as an example, and the gas monitoring system applied to the urban rail transit underground operation section is applied to the integrated monitoring system (ISCS), and comprises a communication manager, a field bus and a plurality of monitoring devices, wherein the plurality of monitoring devices are connected with the field bus in parallel, one end of the communication manager is connected to the field bus, and the other end of the communication manager is connected with the integrated monitoring system special for rail transit.
The gas monitor in the monitoring device in the embodiment of the urban rail transit comprehensive monitoring system is installed at the top of a tunnel between underground operation intervals, a plurality of gas sensors are installed at the top of the tunnel in sequence, leaked gas can be quickly monitored, the distance between every two adjacent gas sensors is 50m, real-time monitoring of the gas between the whole-line underground operation intervals is realized, the input ends of monitoring substations take four communication interfaces as an example, the output ends of the four gas sensors are respectively connected with four input ends of the monitoring substations, the four gas sensors share one monitoring substation, the configuration is flexible, and the system is economical and practical.
The communication manager in the integrated monitoring system (ISCS) comprises a power supply module, a CPU module and a communication module, wherein the power supply module supplies power to the CPU module and the communication module to ensure the normal work of the CPU module and the communication module, the CPU module controls and operates data information received by the communication module, the communication manager is connected to a communication network through the communication module, the communication network is a field bus adopting a linear structure, various monitoring devices in the integrated monitoring system (ISCS) are provided with electric elements with functions of acquisition, arithmetic logic operation, storage, memory, communication and the like, respectively carry out different work processing on gas in an underground operation interval and are provided with communication interfaces, the monitoring devices are connected to the field bus through the communication interfaces and are applied to the integrated monitoring system to acquire the gas concentration in the underground operation interval in real time, the operation state and the fault state of the interval gas sensor are monitored, a comprehensive monitoring system (ISCS) and a human-computer interface are connected, and the operation condition and the parameter setting of each device in the system can be monitored by workers through the human-computer interface.
The utility model discloses what field bus adopted among the integrated monitoring system (ISCS) among 1 is the single bus structure, according to how much and the requirement of system reliability of equipment, when the equipment in the system is more, when requiring the improvement to the reliability of system, adopt many single bus forms promptly, adopt redundant configuration or non-redundant configuration to the communication manager, the utility model provides a communication manager among 1 adopts non-redundant configuration, adopts non-redundant configuration at integrated monitoring system (ISCS) worker class, takes redundant configuration at station environmental control electricity control room switch board, adopts the reliability of redundant configuration increase system.
Example 2
As shown in fig. 3, the monitoring center takes an environment and equipment monitoring system (BAS) as an example, the gas monitoring system applied to the underground operation area of the urban rail transit is applied to the environment and equipment monitoring system, and comprises a communication manager, a field bus and a plurality of monitoring devices, wherein the plurality of monitoring devices are connected in parallel to the field bus, the field bus is further connected with the communication manager, the other end of the communication manager is connected with the environment and equipment monitoring system,
the communication manager in the environment and equipment monitoring system (BAS) comprises a power supply module, a CPU module and a communication module, wherein the power supply module supplies power to the CPU module and the communication module, the CPU module controls and operates data information received by the communication module, the communication manager is connected to a bus through the communication module, a communication network adopts a linear structure field bus, a plurality of monitoring devices in the environment and equipment monitoring system (BAS) are provided with electric elements with functions of acquisition, arithmetic logic operation, storage, memory, communication and the like, and are provided with communication interfaces, the monitoring devices are respectively connected to the field bus in parallel through the communication interfaces, and when the environment and equipment monitoring system (BAS) is applied, the functions of acquiring the gas concentration in an underground operation interval, monitoring the operation state and the fault state of a gas sensor in the underground operation interval, The linkage interval tunnel fan is started to reduce the gas concentration in the interval, a human-computer interface is further arranged in the environment and equipment monitoring system (BAS), and a worker monitors the operation condition and parameter setting of each device in the environment and equipment monitoring system (BAS) in real time through the human-computer interface.
Redundant configuration refers to the repeated configuration of some components in the system, and when the system fails, the components of the redundant configuration intervene and undertake the work of the failure department, thereby reducing the failure time of the system. The utility model provides an environment and equipment monitoring system (BAS) system in 2 take redundant configuration, repeatedly set up a set of communication manager and environment and equipment monitoring system (BAS) promptly, usually consider how much of equipment system reliability requirement promptly, the reliability of system is relevant with the response time of system, when system reliability improves, the response time of system will shorten, can discover the problem that the system appears in the short time, when the equipment of connecting on the bus is more, the response time of system will prolong, when requiring higher to the more reliability of equipment, adopt many single bus forms, the communication manager adopts redundant configuration simultaneously.
Specifically, a gas monitoring system is constructed, the constructed gas monitoring system is connected to a monitoring center system, an operator periodically calibrates a gas sensor in the whole system at a monitoring center workstation through a software interface to ensure the normal operation of the gas sensor, each monitoring device in the gas monitoring system is positioned in an underground operation interval, the gas sensor is used for monitoring the gas concentration in the underground operation interval and is connected with a monitoring substation, a preset value in the monitoring substation is set to be 0.3%, the gas content in the underground operation interval monitored by the gas sensor is compared with the preset value in the monitoring substation, when the gas sensor monitors that the gas concentration in the underground operation interval is higher than 0.3%, an alarm module in the monitoring substation gives an alarm, and meanwhile, an alarm dialog box pops up on a human-machine interface connected with the monitoring substation and the monitoring center, arouse staff's vigilance, tunnel fan control switch is connected to the monitoring center, the gas alarm signal that gas monitoring system monitored passes through network communication and transmits to the monitoring center, the monitoring center starts tunnel fan, otherwise gas sensor continues to monitor the gas in the underground operation interval, constitute the linkage interval between the gas alarm signal that monitoring center and gas monitoring system provided, tunnel fan work reduces the gas concentration in the underground operation interval, after the gas concentration in the underground interval reduces, the alarm is relieved, tunnel fan closes.
To sum up, the utility model aims at providing an underground operation interval gas monitoring system applied to urban rail transit engineering such as subway, each monitoring substation is connected with a plurality of gas sensors which are connected in parallel on a communication network, the gas sensors are not influenced mutually, real-time monitoring of the gas in the whole line underground operation interval is realized, the field bus of a linear structure is distributed, the reliability of the system is improved, the fault rate of the system is reduced, the signal converter enhances the connection with the monitoring substations, the system is more timely and efficient in reaction, the working personnel can observe the running condition and the parameter setting of each device in the underground operation interval in real time through a human-computer interface, problems in the system can be found in time and corrected in time, the system is convenient to maintain and manage, and the working efficiency of the working personnel is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, but rather as the following claims are intended to cover all modifications, equivalents, and improvements falling within the spirit and principles of the present invention.
Claims (9)
1. A gas monitoring system applied to an underground operation interval of urban rail transit is characterized by comprising a monitoring device, a communication network, a communication manager, a monitoring center and a tunnel fan;
the monitoring devices and the communication manager are respectively connected with the communication network, the monitoring devices are connected on the communication network in parallel, and the communication manager is connected with the monitoring center;
the monitoring device comprises a monitoring substation and gas sensors, wherein the output end of each gas sensor is connected with the input end of the monitoring substation, a plurality of gas sensors are connected to the communication network through the monitoring substation, and intelligent instruments are arranged on the gas sensors and the monitoring substation;
the tunnel fan is connected with the monitoring center.
2. The gas monitoring system applied to the underground operation interval of the urban rail transit system as claimed in claim 1, wherein the monitoring device further comprises a signal converter and an exchanger; the switch is connected in series to the communication network, the output end of the signal converter is connected with the input end of the switch, and the input end of the signal converter is connected with the output end of the monitoring substation.
3. The gas monitoring system applied to the underground operation interval of the urban rail transit system as claimed in claim 2, wherein the monitoring substation is provided with an alarm;
the signal converter is a mining intrinsic safety type signal converter.
4. The gas monitoring system applied to the underground operation interval of the urban rail transit system according to claim 3, wherein the gas sensor is a laser methane sensor;
the distance between two adjacent gas sensors is 50 m.
5. The gas monitoring system applied to the underground operation interval of the urban rail transit according to claim 1, wherein the communication network is a field bus structure, and the field bus structure is a linear structure;
the communication network is a communication cable.
6. The gas monitoring system applied to the underground operation interval of the urban rail transit system as claimed in claim 1, wherein the communication manager is a PLC, the communication manager comprises a power module, a CPU module and a communication module, and the communication manager is connected with the communication network through the communication module.
7. The gas monitoring system applied to the underground operation interval of the urban rail transit system as claimed in claim 1, wherein the monitoring center further comprises a human-computer interface.
8. The gas monitoring system applied to the underground operation interval of the urban rail transit according to claim 1, wherein the tunnel fan is an explosion-proof axial flow fan.
9. The gas monitoring system applied to the underground operation interval of the urban rail transit according to claim 1, wherein the monitoring center is a comprehensive monitoring system or an environment and equipment monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831849.4U CN211791603U (en) | 2020-05-19 | 2020-05-19 | Gas monitoring system applied to urban rail transit underground operation interval |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020831849.4U CN211791603U (en) | 2020-05-19 | 2020-05-19 | Gas monitoring system applied to urban rail transit underground operation interval |
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| CN211791603U true CN211791603U (en) | 2020-10-27 |
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| CN202020831849.4U Active CN211791603U (en) | 2020-05-19 | 2020-05-19 | Gas monitoring system applied to urban rail transit underground operation interval |
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